Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 6 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 06/23/2018   13:13:05   (  -0.20,-134.94) (   0.38,-137.50)  292.31                80
 06/24/2018   13:04:12   (  -0.20,-134.98) (  -0.25,-134.68)   33.57                80
 06/25/2018   12:52:39   (  -0.20,-135.01) (  -0.95,-131.87)  359.21                80
 06/28/2018   01:11:19   (   0.23,-135.11) (  -0.17,-136.94)  208.62                80
 06/29/2018   01:02:25   (   0.23,-135.14) (   0.47,-134.12)  116.70                80
 06/30/2018   00:50:52   (   0.22,-135.17) (   1.12,-131.30)  441.89                80
 07/01/2018   13:21:06   (  -0.25,-135.21) (   0.64,-139.19)  453.65                80
 07/02/2018   13:09:33   (  -0.25,-135.24) (  -0.00,-136.37)  128.78                80
 07/03/2018   13:00:39   (  -0.25,-135.27) (  -0.65,-133.55)  196.00                80
 07/06/2018   01:19:18   (   0.26,-135.34) (  -0.47,-138.62)  373.85                80